超细矿渣在硫铝酸盐水泥砂浆中的应用  

Application of Superfine Slag in Sulphoalumina Cement Mortar

作　　者：王春华[1] 叶正茂[1] 孟祥谦[1] 程新[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2009年第1期1-3,共3页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金(50672033);山东省自然科学基金(Z2006F01);济南市科技攻关计划(051085)

摘　　要：在硫铝酸盐水泥砂浆中加入超细矿渣,研究不同掺量的超细矿渣对水泥浆体凝结时间及胶砂流动度、强度的影响。采用电子扫描显微镜(SEM)分析水泥砂浆微观结构以及超细矿渣在砂浆中的影响机理。实验结果表明:随着掺量的提高,水泥浆体的初凝时间延长,终凝时间缩短;胶砂流动度随超细矿渣掺量的增大而减小;随超细矿渣掺量的增大,水泥胶砂的3 d和28 d强度提高,当掺量质量分数为20%时,水泥砂浆28 d的抗折、抗压强度达到最大,分别达到7.3MPa和46.93MPa。This paper studies the influence of different contents of superfine slag （made in JIGANG） on sulphoalumina cement mortar properties, such as setting time, fluidity and strength. Experimental results show that the initial setting time of the paste is prolonged and the final setting time is shorted with the increase of superfine slag content. At the same time, the fluidity of mortar decreases; the bending and compressive strengths of cement mortar at 3 d and 28 d improve. When the content is 20% ,the bending and the compressive strengths of cement mortar reach 7.3 MPa and 46.93 MPa at 28 d ages, respectively. With the help of SEM the micro-structure of mortar and the reaction mechanism of superfine slag in mortar are analyzed.

关 键 词：超细矿渣 凝结时间 流动度 强度 水泥砂浆 

分 类 号：TQ172[化学工程—水泥工业]